Rawalpindi, Apr. 13 : Police in Rawalpindi and Islamabad have arrested 625 suspects during a four-day-long search operation.

According to the Dawn, at least 150 people, including Afghan nationals were rounded up from Rawalpindi on Monday. The suspects were taken into custody in connection with the investigations into the terror attack on the police training college in Manawan and their possible link with militancy in Swat.

Law enforcement officials have also surveyed slums in Islamabad to check for any suspicious activity. A similar survey will be conducted in the capital''s residential apartments, the paper reported. (ANI)